PDF malware analysis — malicious · 1edbd7353c2c5694

MALICIOUS

PDF

13.0 KB

MD5: 08d15b61c04b952d5be0a20bec1e5678 SHA-1: 3892fab6e31b6eee8ed2ad89707ba3ec545b2540 SHA-256: 1edbd7353c2c5694ee028a5609d83bff7b107e4e226e4e5fb8c1058399264d4c

78 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 JavaScript/JScript T1204.002 Malicious File

The PDF file contains embedded JavaScript that leverages the CVE-2007-5659 vulnerability via the Collab.collectEmailInfo method. This JavaScript is designed to deobfuscate and execute further stages, indicated by the extracted files legacy_pdfkit_stage_000.js and legacy_pdfkit_stage_001.js. The primary goal appears to be the download and execution of additional malicious content.

Heuristics 4

Collab.collectEmailInfo — CVE-2007-5659 critical CVE exact CVE_2007_5659

PDF JavaScript calls Collab.collectEmailInfo — CVE-2007-5659 is a buffer overflow in Adobe Reader triggered by a long argument or heap-sprayed message field passed to Collab.collectEmailInfo(). Part of a series of Acrobat JS API exploits. (identified after JavaScript deobfuscation)
JavaScript action low PDF_JAVASCRIPT

PDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
Embedded JS stream low PDF_JS

PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGE

One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0007_000.js` `1847af0a099665b6ac45af66402e56ed64237a1b287618ee3d6643267fda6f35`	pdf-javascript-stream	PDF /JS object 7 at offset 0x19D	343 bytes
`legacy_pdfkit_stage_000.js` `e63f4edf669211a065a74aa3c257c5b7c6f3cc24e42ef3eae364b9bf561efe7e`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F0	12811 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`legacy_pdfkit_stage_001.js` `e33fbb35d6c7fd59ba864575ef62d7769510391f131866a6480664043f8c0e15`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F0	5286 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 5 eval/decoder/string-building token(s).

Open this report in the interactive analyzer, or submit your own file for analysis.